How much would it cost to get the rear window (the curtain) fixed on a...

[Just wondering]

...Pontiac Sunfire convertible? I want to buy a 1998 pontiac sunfire convertible but the rear window, or the curtain, is pushing out.
How much would it be to get this fixed?

 

[melsg5]

you have to check with a local shop that specializes in convertible and vinyl tops.